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  • 1
    Electronic Resource
    Electronic Resource
    Mechanism of permeation of gas through Newton black films at different temperatures (1992)
    s.l. : American Chemical Society
    Langmuir 8 (1992), S. 3142-3144 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00048a047
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    Paper (German National Licenses)
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  • 2
    Electronic Resource
    Electronic Resource
    Line tension in three-phase equilibrium systems (1988)
    s.l. : American Chemical Society
    Langmuir 4 (1988), S. 489-499 
    Details
    ISSN: 1520-5827
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/la00081a001
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    Paper (German National Licenses)
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  • 3
    Electronic Resource
    Electronic Resource
    Experimental Investigation on the “Dimpling” of Thin Liquid Films (1964)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 68 (1964), S. 3619-3624 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100794a030
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  • 4
    Electronic Resource
    Electronic Resource
    Equilibrium constants of ion exchange reactions between fatty acid monolayers and dissolved counterions (1987)
    Springer
    Colloid & polymer science 265 (1987), S. 65-71 
    Details
    ISSN: 1435-1536
    Keywords: Monolayers ; ion exchange
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Equations for equilibrium constants of ion exchange between fatty acid monolayers and subsolution counterions are derived. The approach of Matsubara et al. [4], where the monolayer is considered as a two-dimensional regular mixture is employed, but the different molar volumes of its components are taken into account. Using the equations obtained theK ex values are calculated on the basis of published data on the monolayer composition in the systems Cd2+/HArch, Ba2+/HArch, Ca2+/HSt, Pb2+/ HSt and Cu2+/HSt. The stability constants of the corresponding soaps formed in the monolayer are also obtained.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01422666
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  • 5
    Electronic Resource
    Electronic Resource
    Method for direct measurement of the film tension of black foam films at various capillary pressures (1987)
    Springer
    Colloid & polymer science 265 (1987), S. 72-75 
    Details
    ISSN: 1435-1536
    Keywords: Newton black films ; film tension ; film curvature ; capillary pressure
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract A new experimental method to directly measure the film tension of black foam films is developed on the basis of the Laplace equation. The method allows the determination of the tension of curved (spherical) films with various radii and capillary pressures. Measurements with Newton black films from sodium dodecyl sulphate aqueous solution have been carried out. The results show that in the studied range of curvature radii (70 ÷ 360 μm) the film tension does not depend on the curvature and the capillary pressure.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01422667
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  • 6
    Electronic Resource
    Electronic Resource
    X-ray scattering by black foam films (1990)
    Springer
    Colloid & polymer science 268 (1990), S. 760-765 
    Details
    ISSN: 1435-1536
    Keywords: X-rayinvestigations ; commonblackfilms ; Newtonblackfilms ; stratifiedfilms ; foamfilms
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The x-ray scattering by the three types of black foam films (common black, Newton black, and stratified black films) was experimentally studied. A special device in which flat black films with an area of ca. 2 cm2 can be produced was developed and x-ray diffraction patterns were obtained by a vertical diffractometer. The three types of films differ significantly in their x-ray reflections, which proves that they have different structure. For common black films, the comparison of observed and calculated intensities lead to a model, which corresponds to the three-layer model. The Newton black films exhibit diffraction trace with only one highly asymetric peak and there is, as of yet, no unambigous interpretation. The patterns of the stratified black films have several pronounced sharp peaks corresponding to the areas of different films with a given thickness.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01411108
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  • 7
    Electronic Resource
    Electronic Resource
    Measurement of the film tension of foam films in dynamic conditions (1991)
    Springer
    Colloid & polymer science 269 (1991), S. 272-277 
    Details
    ISSN: 1435-1536
    Keywords: Foam film ; Newton black film ; dynamic film tension
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The method for direct measurement of the film tension of foam films has been developed with a view to measuring the film tension in dynamic conditions. The new method allows the determination of the dynamic film tension when the curvature radius, the contact line radius, and the area of the film increase or decrease with very different rates. Measurements with Newton black films from sodium dodecyl sulphate aqueous solution have been performed. The results show that in a wide range of variation rates of the film geometrical parameters the film tension remains constant.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00665501
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  • 8
    Electronic Resource
    Electronic Resource
    X-ray scattering by black foam films: New data analysis (1993)
    Springer
    Colloid & polymer science 271 (1993), S. 106-107 
    Details
    ISSN: 1435-1536
    Keywords: X-ray reflectivity ; Newton black films ; common black films ; optical matrix formalism ; foam film thickness
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00652311
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  • 9
    Electronic Resource
    Electronic Resource
    Permeability of Newtonian black foam films to gas (1988)
    Springer
    Colloid & polymer science 266 (1988), S. 291-296 
    Details
    ISSN: 1435-1536
    Keywords: Newtonian black films ; foamfilms ; gas permeability ; holes inbilayer film ; amphiphilebilayers
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract The gas permeability of Newtonian black foam films, formed on the top of a small bubble at the solution surface, was studied experimentally. The aqueous solutions contained sodium dodecylsulphate with concentrations in the range 1.5×10−4 to 3×10−3 mol/dm3 and sodium chloride (constant concentration of 0.5 mol/dm3). A dependence of the gas permeability coefficient on the surfactant concentration was obtained. The experimental results are discussed on the basis of a theory assuming the presence of clusters of molecule vacancies (holes) in the bilayer foam film, their number and size depending on the surfactant concentration. The experimental results are in agreement with this film structure and confirm the existence of flow through both the hole-free bilayer film and the holes. It was found that the holes of three molecule vacancies make the main contribution to gas permeability at low surfactant concentration. The diffusion coefficients through the hole-free film and through the three-vacancy holes are calculated.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01452592
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  • 10
    Electronic Resource
    Electronic Resource
    Phase studies of long-chain alkanol complexes with alkylammonium layer silicates (1993)
    Springer
    Colloid & polymer science 271 (1993), S. 891-900 
    Details
    ISSN: 1435-1536
    Keywords: Alkylammonium-alkanol-intercalates ; miscibility gap in alkanol complexes ; structure of alkyl interlayers ; coexistence of phases
    Source: Springer Online Journal Archives 1860-2000
    Topics: Chemistry and Pharmacology , Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: Abstract Measurements of basal spacings ofn-tetradecylammonium-n-tetradecanol complexes of beidellite and montmorillonite in a wide range of tetradecanol concentrations have been carried out. Three different intercalate phases have been established at room temperature. In definite concentration ranges two of the phases coexist. These miscibility gaps disappear when the temperature is increased above 80°C. They appear again at cooling. This reversibility with temperature confirms the equilibrium nature of the phases observed. Additional information about the structure of the phases has been obtained by basal spacing measurements at constant temperature and alkanol concentration with all nine members of then-alkyl homologs with 10 to 18 carbon atoms in the chains. The structures of the interlayers in the different phases have been discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF00652772
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